toolkit/xre/nsQAppInstance.cpp

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   3 /* ***** BEGIN LICENSE BLOCK *****
   4  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   5  *
   6  * The contents of this file are subject to the Mozilla Public License Version
   7  * 1.1 (the "License"); you may not use this file except in compliance with
   8  * the License. You may obtain a copy of the License at
   9  * http://www.mozilla.org/MPL/
  10  *
  11  * Software distributed under the License is distributed on an "AS IS" basis,
  12  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  13  * for the specific language governing rights and limitations under the
  14  * License.
  15  *
  16  * The Original Code is Mozilla Corporation code.
  17  *
  18  * The Initial Developer of the Original Code is Mozilla Foundation.
  19  * Portions created by the Initial Developer are Copyright (C) 2010
  20  * the Initial Developer. All Rights Reserved.
  21  *
  22  * Contributor(s):
  23  *   Oleg Romashin <romaxa@gmail.com>
  24  *
  25  * Alternatively, the contents of this file may be used under the terms of
  26  * either the GNU General Public License Version 2 or later (the "GPL"), or
  27  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  28  * in which case the provisions of the GPL or the LGPL are applicable instead
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  36  *
  37  * ***** END LICENSE BLOCK ***** */
  38
  39 #include "nsQAppInstance.h"
  40 #include <QApplication>
  41 #include "prenv.h"
  42
  43 // declared in nsAppRunner.cpp
  44 extern int    gArgc;
  45 extern char **gArgv;
  46
  47 QApplication *nsQAppInstance::sQAppInstance = NULL;
  48 int nsQAppInstance::sQAppRefCount = 0;
  49
  50 void nsQAppInstance::AddRef(void) {
  51   if (qApp) return;
  52   if (!sQAppInstance) {
  53     const char *graphicsSystem = PR_GetEnv("MOZ_QT_GRAPHICSSYSTEM");
  54     if (graphicsSystem)
  55       QApplication::setGraphicsSystem(QString(graphicsSystem));
  56 #if (MOZ_PLATFORM_MAEMO == 6)
  57     QApplication::setStyle(QLatin1String("windows"));
  58     if (!gArgc) {
  59       gArgv[gArgc] = strdup("nsQAppInstance");
  60       gArgc++;
  61     }
  62 #endif
  63     sQAppInstance = new QApplication(gArgc, gArgv);
  64   }
  65   sQAppRefCount++;
  66 }
  67
  68 void nsQAppInstance::Release(void) {
  69   if (sQAppInstance && !--sQAppRefCount) {
  70     delete sQAppInstance;
  71     sQAppInstance = NULL;
  72   }
  73 }